95 lines
2.3 KiB
Ruby
95 lines
2.3 KiB
Ruby
# frozen_string_literal: true
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module Gitlab
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# Provides routines to identify the current runtime as which the application
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# executes, such as whether it is an application server and which one.
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module Runtime
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IdentificationError = Class.new(RuntimeError)
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AmbiguousProcessError = Class.new(IdentificationError)
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UnknownProcessError = Class.new(IdentificationError)
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AVAILABLE_RUNTIMES = [
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:console,
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:geo_log_cursor,
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:puma,
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:rails_runner,
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:rake,
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:sidekiq,
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:test_suite,
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:unicorn
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].freeze
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class << self
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def identify
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matches = AVAILABLE_RUNTIMES.select { |runtime| public_send("#{runtime}?") } # rubocop:disable GitlabSecurity/PublicSend
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if matches.one?
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matches.first
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elsif matches.none?
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raise UnknownProcessError.new(
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"Failed to identify runtime for process #{Process.pid} (#{$0})"
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)
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else
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raise AmbiguousProcessError.new(
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"Ambiguous runtime #{matches} for process #{Process.pid} (#{$0})"
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)
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end
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end
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def puma?
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!!defined?(::Puma)
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end
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# For unicorn, we need to check for actual server instances to avoid false positives.
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def unicorn?
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!!(defined?(::Unicorn) && defined?(::Unicorn::HttpServer))
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end
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def sidekiq?
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!!(defined?(::Sidekiq) && Sidekiq.server?)
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end
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def rake?
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!!(defined?(::Rake) && Rake.application.top_level_tasks.any?)
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end
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def test_suite?
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Rails.env.test?
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end
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def console?
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!!defined?(::Rails::Console)
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end
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def geo_log_cursor?
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!!defined?(::GeoLogCursorOptionParser)
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end
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def rails_runner?
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!!defined?(::Rails::Command::RunnerCommand)
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end
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def web_server?
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puma? || unicorn?
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end
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def multi_threaded?
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puma? || sidekiq?
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end
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def max_threads
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main_thread = 1
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if puma?
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Puma.cli_config.options[:max_threads] + main_thread
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elsif sidekiq?
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# An extra thread for the poller in Sidekiq Cron:
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# https://github.com/ondrejbartas/sidekiq-cron#under-the-hood
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Sidekiq.options[:concurrency] + main_thread + 1
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else
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main_thread
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end
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end
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end
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end
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end
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